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ICD Hub / Diseases of the ear or mastoid process (H60–H95) / AA40 - Acquired deformity of external auditory canal
ICD-11

ICD-11 Codes
for AA40 - Acquired deformity of external auditory canal
Teodor Jurukovski January 1, 1970
Fact checked by: Teodor Jurukovski
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Understanding Acquired Deformity of the External Auditory Canal

Acquired deformity of the external auditory canal refers to a change in the shape or structure of the ear canal that develops after birth. This condition, identified by the ICD-11 code AA40, can affect the normal function of the ear, potentially leading to complications. It is distinct from congenital conditions and arises due to external factors impacting the ear canal's integrity.

Potential Causes and Contributing Factors

Several factors can lead to an acquired deformity of the external auditory canal. These may include infections that cause inflammation and scarring, trauma to the ear, or complications arising from otologic surgery. Radiation therapy can also contribute to changes in the ear canal's structure. Understanding these potential causes is crucial for diagnosis and management.

Diagnostic Approaches for External Auditory Canal Deformity

Diagnosing an acquired deformity of the external auditory canal typically involves a thorough medical history and a physical examination of the ear. Healthcare professionals will assess the external auditory canal for any visible narrowing, scarring, or structural changes. This evaluation helps determine the extent of the deformity and identify potential underlying causes, such as previous injuries or infections.

Recognising Symptoms of External Auditory Canal Deformity

Patients experiencing an acquired deformity of the external auditory canal may present with a range of symptoms. A common sign is progressive conductive hearing loss, as the altered structure can impede sound waves from reaching the eardrum. Other presentations might include a noticeable narrowing of the ear canal, discomfort, or a feeling of fullness in the ear.

Coding and Documentation for AA40

The ICD-11 code for Acquired deformity of external auditory canal is AA40. Accurate documentation is essential for medical billing and reporting. When coding for this condition, healthcare providers should ensure that the documentation clearly supports the diagnosis of an acquired deformity, distinguishing it from congenital issues. This ICD-11 code is reportable and billable when a patient presents with this specific condition.

Alternative Names and Descriptions

Acquired deformity of the external auditory canal may also be referred to by other terms in clinical practice. These can include acquired ear canal narrowing, acquired external ear canal malformation, or descriptions related to the specific cause, such as post-traumatic ear canal deformity.

When to Consult a Healthcare Professional

Individuals experiencing changes in their hearing, particularly a progressive loss, or noticing any structural alterations in their ear canal should seek prompt medical advice. Early consultation with a healthcare provider is important for accurate diagnosis and to discuss appropriate management strategies for acquired deformities of the external auditory canal.

Frequently asked questions

What is the ICD-11 code for Acquired deformity of external auditory canal?
The ICD-11 code for Acquired deformity of external auditory canal is AA40.
What are the specific categories within Acquired deformity of external auditory canal in ICD-11?
ICD-11 classifies Acquired deformity of external auditory canal into specific categories including Exostosis (AA40.0), Acquired stenosis (AA40.1), Cholesteatoma (AA40.2), Other specified acquired deformity (AA40.Y), and an unspecified category (AA40.Z).
How is laterality specified for Acquired deformity of external auditory canal in ICD-11 coding?
Laterality for Acquired deformity of external auditory canal can be specified using post-coordination codes such as XK9J for Bilateral, XK8G for Left, XK9K for Right, or XK70 for Unilateral, unspecified.
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